NOVA"Mystery of Easter Island"
On Easter Island, a tiny, remote rock in the Pacific, stand nearly 900 stone statues weighing up to 86 tons. How and why did ancient islanders build and move these giant figures? NOVA investigates questions that have mystified the world for centuries. D

6:00 pm

NOVA scienceNOW"What Are Animals Thinking?"
Have you ever wondered what's going on inside an Animal's head? How do they see the world -- and us? Is your dog really feeling guilty when it gives you that famous "guilty look?" Do pigeon brains possess "superpowers" that allow them to find their way home across hundreds of unfamiliar miles? David Pogue meets -- and competes -- with a menagerie of smart critters that challenge preconceived notions about what makes "us" different from "them" expanding our understanding of how animals really think. D

7:00 pm

Transplant: A Gift for Life
TRANSPLANT: A GIFT FOR LIFE reveals the powerful emotions and cutting-edge science involved in vital organ transplant. Told through multiple real-life stories, this one-hour documentary demonstrates how the tragic death -- or inspirational generosity -- of one person can pull another back from the brink, offering a second chance at life. We meet a daughter who shares half of her liver to save her father's life; the recipient of a lung transplant who reaches out to his deceased donor's family; and two mothers who nurse their sons through multiple transplants. D

Nightly Business Report
A repeated warning to Washington: if the U.S. goes over the fiscal cliff, it would push the economy into a recession. Europe delivers a downbeat economic outlook for the next year and China prepares to anoint a new leader. D

NOVA scienceNOW"What Are Animals Thinking?"
Have you ever wondered what's going on inside an Animal's head? How do they see the world -- and us? Is your dog really feeling guilty when it gives you that famous "guilty look?" Do pigeon brains possess "superpowers" that allow them to find their way home across hundreds of unfamiliar miles? David Pogue meets -- and competes -- with a menagerie of smart critters that challenge preconceived notions about what makes "us" different from "them" expanding our understanding of how animals really think. D